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Correlations, Path Analyses and Selection Indices for Castorbean (Ricinus communis L.)

Published online by Cambridge University Press:  03 October 2008

S. H. Salih  and
M. O. Khidir
S. H. Salih
Affiliation:
Faculty of Agriculture, Shambat, Democratic Republic of the Sudan
M. O. Khidir
Affiliation:
Faculty of Agriculture, Shambat, Democratic Republic of the Sudan
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Summary

Genotypic correlations and path coefficients were used to determine the importance of various characters as components of yield in castorbean. Number of primary branches per plant and 100-seed weight had high positive correlations with yield per plant and with each other. Oil content was significantly and positively correlated with 100-seed weight. The path analysis revealed that number of clusters per plant, number of branches, height at maturity and yield of the first spike had the highest direct effect on yield per plant. Sixteen selection indices were constructed using these four yield components, the index combining all four being about 54 per cent more efficient than straight selection based on yield alone.

Type
Research Article
Information
Experimental Agriculture , Volume 11 , Issue 2 , April 1975 , pp. 145 - 154
Copyright
Copyright © Cambridge University Press 1975

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